EP 0601953 A1 19940615 - Process of hydrogenation in solution of the double bonds of polymers of conjugated dienes, and hydrogenated block copolymer produced.
Title (en)
Process of hydrogenation in solution of the double bonds of polymers of conjugated dienes, and hydrogenated block copolymer produced.
Title (de)
Verfahren zur Hydrierung in Lösung der Doppelbindungen von Polymeren aus conjugiesten Dienen, und hergestellte hydrierte Blockcopolymere.
Title (fr)
Procédé pour hydrogéner en solution les double liaisons de polymères de diènes conjugués et des coplymères en block hydrogénés ainsi préparés.
Publication
Application
Priority
ES 9202219 A 19921103
Abstract (en)
Process of hydrogenation in solution of polymers of conjugated dienes in the presence of homogeneous catalysts which contain, as essential component, a titanium compound of the type CP2Ti(PhOR)2, where Cp is a cyclopentadienyl group, Ph a phenyl group, and OR an alkoxide group containing 1 to 4 carbon atoms; or a titanium compound of the type Cp2TiR2, where R is a CH2PPh2 group. These catalysts are very active in the selective hydrogenation of the double bonds of the diene units of polymers or copolymers of conjugated dienes having number-averaged molecular weights of between approximately 500 and 1,000,000, and, in particular, of random and block copolymers of styrene and butadiene or isoprene, the latter containing at least one styrene block and one polybutadiene and/or polyisoprene block.
IPC 1-7
IPC 8 full level
C08F 8/04 (2006.01); C08C 19/02 (2006.01); C08F 36/00 (2006.01); C08F 36/04 (2006.01)
CPC (source: EP)
C08C 19/02 (2013.01)
Citation (search report)
[A] FR 2539745 A1 19840727 - ASAHI CHEMICAL IND [JP] & US 4501857 A 19850226 - KISHIMOTO YASUSHI [JP], et al
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0601953 A1 19940615; EP 0601953 B1 19970514; DE 69310687 D1 19970619; DE 69310687 T2 19971127; ES 2050620 A1 19940516; ES 2050620 B1 19941216; JP 2725986 B2 19980311; JP H06206928 A 19940726; MX 9306843 A 19950131
DOCDB simple family (application)
EP 93500150 A 19931103; DE 69310687 T 19931103; ES 9202219 A 19921103; JP 27582693 A 19931104; MX 9306843 A 19931103